El EVR02 de Davide: wallbox autoregulable

[josave]

Amigos, tras pedirle a Davide un CRO para trifásica me comenta que está desarrollando un Wallbox mono-trifasico con una novedosa función: varía el nivel de potencia en función de lo que reste entre el consumo total de la casa menos la producción de paneles si los tenemos. ¡Increible! Aparte de poder regular la potencia algo que casi ningún wallbox tiene de forma sencilla con mando en el panel, esto permite que nos podamos plantear una alternativa ante el decreto del gobierno que bloquea el autoconsumo y que podamos poner paneles directos al coche sin tener que registrarlos a "Robodrola" y demás miembros del cártel...

> Hi Davide,
Hi,

> I am still dreaming of a triphase "EVR2"... don´t you think you can design it?
> Sure you can... I will be gladly your first customer.

About 50% of my EVR01 customers are asking me the same thing, but EVR02 will be
a fixed wall box.
I'm designing it, but I have so little spare time to use for it.
Normatives are continuously changing, this doesn't make my work easier.

>  Use the actual box, with nine levels of current: 16, 14, 12, 10, 8, 7, 6, 5
> and 4 amp. So the future EVR2 can range from 11kW to 2,7 kW at 230v.

It will be selectable to any current level up to 32A, mono or 3-phase.
It will auto-regulate current depending on available residual power at home
(measuring photovoltaic production and home power draw).

> Use a thinner cable, say 4mm2 because maximum current will be 16 amp per phase.
The external cable must be 2.5mm² for 16A or 6mm² for 32A. Both for mono and
3-phase.
> The relays need to be a double each one, maybe driven by the same amount of
> current, so you move 4 contactors

I use a strong 63A 4 poles contactor

> Forget the 30ma differential, I actually removed the two wires, it use to
> disconnect too often, instead I am using a external 30 ma inmunized.

EVR02 will have no internal RCD and overcurrent protections. They must be added
externally.

> Think about it. Yours sincerely,
> Jose

As far as I know, this is the only 3-phase mode-2 charging cable available on
the market:

http://www.e-station-store.it/prodotti/ricarica-portatile/fast-charger-tipo-2-fino-a-22-kw-trifase.html

Bye
Davide
>
>
> Asunto: Re: ELPA EVR01 update
>
> It's not so simple:
> - I have not the required cable (5G6+1x0.75).
> - The electronic supply has not enough power to drive 2 more relays
> - The relays used are not suitable for 400V 3-phase, they can manage 277Vac
> maximum.
> - There is not enough space into the toroid for 4x6mm² wires
> - There is not enough space into the electronic box to fit additional parts
> Bye
> Davide
>
>
>
> > Thans a lot Davide,
> > Just abusing of your kindness... I was only thinking...Is it possible to
> > modify the cable to made it triphase?
> > That is changing the plug for a red CEE16 o CEE32, wiring it to the Mennekes
> > socket, adding two relays...
> > ¿Can you make this and ship to me another one for my use?
> > Thanks again,
> > Jose

[josave]

Actualizo noticias del EVR02:

"...I'm designing EVR02, a real smart integrated domestic Wallbox, up to 22kW 3-phase autoregulating (with TIC, french energy counter interface), network controlled with logging capabilities and http server. That design is quite complex, I should have first prototypes at start of 2014. I hope meanwhile the type 2 connector will become standard for all wallboxes in Europe."

http://renault-zoe.forumpro.fr/t1367p420-le-crd-cable-de-recharge-de-davide-r